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Defender 110

Defender 110

 
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MikeJRA
Naturally-aspirated

9
11-17-2010, 03:45 AM #1
Hi. First i want to say thanks to the contributors of this web site, it has been a huge help in learning about the Mercedes diesels.

I'm about to start the restoration of my 1987 defender 110 and have been looking at alternative engines. At the moment it has a 2.5l naturally asphyxiated diesel producing 68bhp & 114 lb/ft of torque, it needs more power. The engine I had planned to put in is the 200TDi which produces 103bhp & 195lb/ft of torque. The 200TDI is a nice enough engine but they are not cheap, are not available in North America and are becoming harder to find parts for. Heads are no longer available. My truck weighs aprox. 4500lbs.

I have been researching the OM617a, OM602, and the OM603. The transmission I have is rated to 280lb/ft of torque so I was hoping to have an engine with about 230lb/ft of torque, I've driven a truck with this set up and it was very nice. I also want as reliable an engine as possible, minimal to no electronics and I'd like to keep the 20+ mpg economy I'm getting now.

Now for the questions, I've seen some great dyno numbers for the 617 but what do you think the torque at the fly wheel would be with the basic mods listed, or would I have to get the pump modified to get 230lb/ft of torque? Or would just turbo, injector, and the simple pump mods listed on this site be enough?

The 603 looks like a good choice, what is the parts availability like? I read somewhere that the heads are becoming difficult to find. Can you still get the better head if you find an engine with #14. How much longer is the 603 compared to the 617?

The 602 seems to have a good reputation and is said to be as reliable as the 617, and I read that the torque spec is 222lb/ft @2400rpm, this seems to be a bit higher then the other engines, is this correct or is it just for the electronically controlled ones? Can you remove or replace the electronics on the newer ones?

Thanks in advance for any help you can give. I also invite any advice or opinions as I'm still learning about these engines, I've been a Landrover & VW diesel fan up until now. Hopefully you won't hold that against me.

Mike
This post was last modified: 11-18-2010, 12:46 AM by MikeJRA.
MikeJRA
11-17-2010, 03:45 AM #1

Hi. First i want to say thanks to the contributors of this web site, it has been a huge help in learning about the Mercedes diesels.

I'm about to start the restoration of my 1987 defender 110 and have been looking at alternative engines. At the moment it has a 2.5l naturally asphyxiated diesel producing 68bhp & 114 lb/ft of torque, it needs more power. The engine I had planned to put in is the 200TDi which produces 103bhp & 195lb/ft of torque. The 200TDI is a nice enough engine but they are not cheap, are not available in North America and are becoming harder to find parts for. Heads are no longer available. My truck weighs aprox. 4500lbs.

I have been researching the OM617a, OM602, and the OM603. The transmission I have is rated to 280lb/ft of torque so I was hoping to have an engine with about 230lb/ft of torque, I've driven a truck with this set up and it was very nice. I also want as reliable an engine as possible, minimal to no electronics and I'd like to keep the 20+ mpg economy I'm getting now.

Now for the questions, I've seen some great dyno numbers for the 617 but what do you think the torque at the fly wheel would be with the basic mods listed, or would I have to get the pump modified to get 230lb/ft of torque? Or would just turbo, injector, and the simple pump mods listed on this site be enough?

The 603 looks like a good choice, what is the parts availability like? I read somewhere that the heads are becoming difficult to find. Can you still get the better head if you find an engine with #14. How much longer is the 603 compared to the 617?

The 602 seems to have a good reputation and is said to be as reliable as the 617, and I read that the torque spec is 222lb/ft @2400rpm, this seems to be a bit higher then the other engines, is this correct or is it just for the electronically controlled ones? Can you remove or replace the electronics on the newer ones?

Thanks in advance for any help you can give. I also invite any advice or opinions as I'm still learning about these engines, I've been a Landrover & VW diesel fan up until now. Hopefully you won't hold that against me.

Mike

 
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Messages In This Thread
Defender 110 - by MikeJRA - 11-17-2010, 03:45 AM
RE: Defender 110 - by willbhere4u - 11-17-2010, 03:09 PM
RE: Defender 110 - by MikeJRA - 11-17-2010, 07:36 PM
RE: Defender 110 - by willbhere4u - 11-17-2010, 11:00 PM
RE: Defender 110 - by MikeJRA - 11-18-2010, 01:09 AM
RE: Defender 110 - by winmutt - 11-18-2010, 08:28 AM
RE: Defender 110 - by willbhere4u - 11-18-2010, 12:26 PM
RE: Defender 110 - by MikeJRA - 11-18-2010, 12:36 PM
RE: Defender 110 - by willbhere4u - 11-18-2010, 01:14 PM
RE: Defender 110 - by ben2go - 11-18-2010, 02:04 PM
RE: Defender 110 - by MikeJRA - 11-18-2010, 03:47 PM
RE: Defender 110 - by willbhere4u - 11-18-2010, 04:31 PM
RE: Defender 110 - by MikeJRA - 11-18-2010, 06:14 PM
RE: Defender 110 - by larsalan - 11-18-2010, 07:01 PM
RE: Defender 110 - by ben2go - 11-18-2010, 08:57 PM
RE: Defender 110 - by Silberpfeil - 11-18-2010, 11:33 PM
RE: Defender 110 - by MikeJRA - 11-19-2010, 12:34 AM
RE: Defender 110 - by Syncro_G - 11-20-2010, 11:06 AM
RE: Defender 110 - by willbhere4u - 11-19-2010, 10:59 AM
RE: Defender 110 - by willbhere4u - 11-20-2010, 12:29 PM
RE: Defender 110 - by Riverstick - 12-02-2010, 04:45 PM
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